Calendar issue after migration from Ex2000

I am testing Zimbra with the migration for our small company and migrated my own user account across as a test.
Everything went quite well but noticed my first glitch.

I have a calendar entry which is a recurring end of Month for my backups and should pop up on the last day of the month. After the migration, it's appearing as "The last Monday of every 1 month(s). No end date. Effective 07-Jan-2008."

Anyone had this issue? I used the zimbra version I used is zcs-5.0.1_GA_1902.RHEL5.20080109200629.tgz

I am testing Zimbra with the migration for our small company and migrated my own user account across as a test.
Everything went quite well but noticed my first glitch.

I have a calendar entry which is a recurring end of Month for my backups and should pop up on the last day of the month. After the migration, it's appearing as "The last Monday of every 1 month(s). No end date. Effective 07-Jan-2008."

Anyone had this issue? I used the zimbra version I used is zcs-5.0.1_GA_1902.RHEL5.20080109200629.tgz

Could you please attach to the thread the ics file corresponding to the event you are migrating?